<style face="normal" font="default" size="100%">Tramadol versus Codeine and the Short-term Risk of Cardiovascular Events in Patients with Non-Cancer Pain: A Population-Based Cohort Study</style>

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31<style face="normal" font="default" size="100%">Tramadol versus Codeine and the Short-term Risk of Cardiovascular Events in Patients with Non-Cancer Pain: A Population-Based Cohort Study</style><style face="normal" font="default" size="100%">Tramadol versus Codeine and the Short-term Risk of Cardiovascular Events in Patients with Non-Cancer Pain: A Population-Based Cohort Study</style>